{"schemaVersion":3,"id":"CVE-2026-76473","aliases":[],"status":"published","duplicateOf":null,"title":"Cisco Unified Communications Products Hardening Release: October 2026 - Improper control of a resource through its lifetime.","description":"As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection have conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.\n\nThe vulnerabilities tracked by CVE-2026-76473 are related to issues concerning improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Class CWE-74.","dates":{"published":"2026-10-21T16:14:31.067Z","modified":"2026-10-22T13:37:54.761Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00356,"percentile":0.28129,"severity":"low","asOf":"2026-10-22T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-22T00:00:00.000Z","score":0.00356,"percentile":0.28129}],"last30":[{"date":"2026-10-22T00:00:00.000Z","score":0.00356,"percentile":0.28129}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')","description":"The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/74.html"}],"affected":[{"vendor":"cisco","product":"cisco emergency responder","name":"Cisco Emergency Responder","label":"cisco emergency responder","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"14","noFixRecorded":false,"fixedIn":null},{"text":"14SU1","noFixRecorded":false,"fixedIn":null},{"text":"14SU2","noFixRecorded":false,"fixedIn":null},{"text":"14SU3","noFixRecorded":false,"fixedIn":null},{"text":"14SU3a","noFixRecorded":false,"fixedIn":null},{"text":"15","noFixRecorded":false,"fixedIn":null},{"text":"15SU1","noFixRecorded":false,"fixedIn":null},{"text":"15SU1a","noFixRecorded":false,"fixedIn":null},{"text":"14SU4","noFixRecorded":false,"fixedIn":null},{"text":"15SU2","noFixRecorded":false,"fixedIn":null},{"text":"15SU3","noFixRecorded":false,"fixedIn":null},{"text":"14SU5","noFixRecorded":false,"fixedIn":null},{"text":"15SU4","noFixRecorded":false,"fixedIn":null},{"text":"14SU6","noFixRecorded":false,"fixedIn":null}],"versionsText":"14 | 14SU1 | 14SU2 | 14SU3 | 14SU3a | 15 | 15SU1 | 15SU1a | 14SU4 | 15SU2 | 15SU3 | 14SU5 | 15SU4 | 14SU6","eol":null,"hubHref":"/vendor/cisco/cisco_emergency_responder"},{"vendor":"cisco","product":"cisco unified communications manager","name":"Cisco Unified Communications Manager","label":"cisco unified communications manager","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"14","noFixRecorded":false,"fixedIn":null},{"text":"14SU1","noFixRecorded":false,"fixedIn":null},{"text":"14SU2","noFixRecorded":false,"fixedIn":null},{"text":"14SU3","noFixRecorded":false,"fixedIn":null},{"text":"15","noFixRecorded":false,"fixedIn":null},{"text":"15SU1","noFixRecorded":false,"fixedIn":null},{"text":"14SU4","noFixRecorded":false,"fixedIn":null},{"text":"14SU4a","noFixRecorded":false,"fixedIn":null},{"text":"15SU1a","noFixRecorded":false,"fixedIn":null},{"text":"15SU2","noFixRecorded":false,"fixedIn":null},{"text":"15.0.1.13010-1","noFixRecorded":false,"fixedIn":null},{"text":"15.0.1.13011-1","noFixRecorded":false,"fixedIn":null},{"text":"15.0.1.13012-1","noFixRecorded":false,"fixedIn":null},{"text":"15.0.1.13013-1","noFixRecorded":false,"fixedIn":null},{"text":"15.0.1.13014-1","noFixRecorded":false,"fixedIn":null},{"text":"15.0.1.13015-1","noFixRecorded":false,"fixedIn":null},{"text":"15.0.1.13016-1","noFixRecorded":false,"fixedIn":null},{"text":"15.0.1.13017-1","noFixRecorded":false,"fixedIn":null},{"text":"15SU3a","noFixRecorded":false,"fixedIn":null},{"text":"14SU5","noFixRecorded":false,"fixedIn":null},{"text":"15SU4","noFixRecorded":false,"fixedIn":null},{"text":"15SU4a","noFixRecorded":false,"fixedIn":null},{"text":"14SU6","noFixRecorded":false,"fixedIn":null}],"versionsText":"14 | 14SU1 | 14SU2 | 14SU3 | 15 | 15SU1 | 14SU4 | 14SU4a | 15SU1a | 15SU2 | 15.0.1.13010-1 | 15.0.1.13011-1 | 15.0.1.13012-1 | 15.0.1.13013-1 | 15.0.1.13014-1 | 15.0.1.13015-1 | 15.0.1.13016-1 | 15.0.1.13017-1 | 15SU3a | 14SU5 | 15SU4 | 15SU4a | 14SU6","eol":null,"hubHref":"/vendor/cisco/cisco_unified_communications_manager"},{"vendor":"cisco","product":"cisco unified communications manager im and presence service","name":"Cisco Unified Communications Manager IM and Presence Service","label":"cisco unified communications manager im and presence service","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"14","noFixRecorded":false,"fixedIn":null},{"text":"14SU1","noFixRecorded":false,"fixedIn":null},{"text":"14SU2","noFixRecorded":false,"fixedIn":null},{"text":"14SU2a","noFixRecorded":false,"fixedIn":null},{"text":"14SU3","noFixRecorded":false,"fixedIn":null},{"text":"15","noFixRecorded":false,"fixedIn":null},{"text":"15SU1","noFixRecorded":false,"fixedIn":null},{"text":"14SU4","noFixRecorded":false,"fixedIn":null},{"text":"15SU2","noFixRecorded":false,"fixedIn":null},{"text":"15SU3","noFixRecorded":false,"fixedIn":null},{"text":"14SU5","noFixRecorded":false,"fixedIn":null},{"text":"15SU4","noFixRecorded":false,"fixedIn":null},{"text":"14SU6","noFixRecorded":false,"fixedIn":null}],"versionsText":"14 | 14SU1 | 14SU2 | 14SU2a | 14SU3 | 15 | 15SU1 | 14SU4 | 15SU2 | 15SU3 | 14SU5 | 15SU4 | 14SU6","eol":null,"hubHref":"/vendor/cisco/cisco_unified_communications_manager_im_and_presence_service"},{"vendor":"cisco","product":"cisco unity connection","name":"Cisco Unity Connection","label":"cisco unity connection","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"14","noFixRecorded":false,"fixedIn":null},{"text":"14SU1","noFixRecorded":false,"fixedIn":null},{"text":"14SU2","noFixRecorded":false,"fixedIn":null},{"text":"14SU3","noFixRecorded":false,"fixedIn":null},{"text":"14SU3a","noFixRecorded":false,"fixedIn":null},{"text":"15","noFixRecorded":false,"fixedIn":null},{"text":"15SU1","noFixRecorded":false,"fixedIn":null},{"text":"14SU4","noFixRecorded":false,"fixedIn":null},{"text":"15SU2","noFixRecorded":false,"fixedIn":null},{"text":"15SU3","noFixRecorded":false,"fixedIn":null},{"text":"14SU5","noFixRecorded":false,"fixedIn":null},{"text":"15SU4","noFixRecorded":false,"fixedIn":null},{"text":"14SU6","noFixRecorded":false,"fixedIn":null}],"versionsText":"14 | 14SU1 | 14SU2 | 14SU3 | 14SU3a | 15 | 15SU1 | 14SU4 | 15SU2 | 15SU3 | 14SU5 | 15SU4 | 14SU6","eol":null,"hubHref":"/vendor/cisco/cisco_unity_connection"}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-voice-hardening-twgbH9e3","label":"sec.cloudapps.cisco.com/security/…","hostname":"sec.cloudapps.cisco.com","tags":[]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-21T16:14:31.067Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-22T13:37:54.761Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T20:43:07.813Z","stale":false,"partial":false}}